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What is Multiplexing?

Multiplexing is a technique by which multiple analog or digital data streams are combined into one signal over a shared medium. Multiplexing originated in telegraphy in the 1870s, and is now widely applied in communications. The multiplexed signal is transmitted over a communication channel, such as a cable. A reverse process, known as demultiplexing, extracts the original channels on the receiver end.


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